sys_fuzzMime-Version: 1.0

[Hal Murray]

>> A KVM guest shows:
>> [    0.392136] Switched to clocksource kvm-clock

> Sorry, I don't know how to interpret this.

That's telling you how the system is keeping time.

The clock inside the Linux kernel has a plug in API.  During startup, it 
scans a list of possibilities and picks the best one.  You can see the list 
with
  cat /sys/devices/system/clocksource/clocksource0/available_clocksource

I think hpet is a 14.xxx MHz counter.  Think of it as a predecssor to the 
TSC.   It might be worth hacking a kernel to disable the TSC and fall back to 
the hpet so we have a slightly coarse clock to experiment with.

The TSC on some of the early chips actually counted cycles so the rate 
changed when you reduced the CPU clock speed to save power.


-- 
These are my opinions.  I hate spam.